Disclosed is an image encoding method. The method includes deriving a motion refinement candidate from among motion information of spatial neighboring blocks, motion information of a temporal neighboring blocks, predefined motion information, and motion information that most frequently occurs in a reference picture, performing a motion information refinement on the derived motion refinement candidate, and generating a prediction block of a current block by using the motion refinement candidate having undergone the motion information refinement.
Legal claims defining the scope of protection, as filed with the USPTO.
3. The method according to claim 1, wherein the motion information refinement is performed based on a limited region set based on a pixel indicated by a motion vector included in the determined merge candidate.
4. The method according to claim 3, wherein the limited region is a cross shape.
7. The method according to claim 1, wherein the motion information refinement is performed only on a predetermined number of the merge candidate included in the merge candidate list.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
June 5, 2018
March 28, 2023
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.